Open Thread: The "43 Folders" of health and fitness sites?

Over the last six months or so, I've gotten a lot of requests via email from people looking for (yes, thanks, more than one person called it this) "the 43 Folders of (health|exercise|fitness) sites."

Naturally I set my Google fu in motion, fully expecting to turn up dozens of excellent sites on how to stay motivated about workouts, how to eat properly, and how to psych (or "hack," if you prefer) yourself into straightening out, losing weight, and getting that fat ass in motion.

Funny thing: I came up pretty thin -- and not in that good, healthy, slender kind of thin way. In at least three sittings of searching over the past few months, I just did not turn up more than a couple of independent sites that really blew me away. Really surprising, and maybe I was just looking in the wrong places. Like under a 12-pack of beer and a rib roast.

BUT. I'm sure they're out there, and I can't think of smarter people to ask than you, so you tell me: what's your favorite website or blog about getting healthy? What are your favorite apps for tracking progress and watching a diet? Who's got the best "health hacks?"

Post your faves in comments and help your geeky friends get as theoretically fit as they are theoretically organized.

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